What purpose does a paint booth serve in autobody repair?

A paint booth is specifically designed to provide a controlled environment for painting vehicles, which includes containing hazardous overspray. This is crucial for ensuring both the safety of the workers and the quality of the paint application. The booth filters the air and prevents contaminants from affecting the paint finish, leading to a smoother, more professional result. By controlling factors like air pressure, temperature, and humidity, a paint booth also helps ensure that the paint adheres properly and cures effectively.

While assembling vehicles and storing tools are important in an autobody shop, those functions do not pertain to the specific role of a paint booth. Additionally, decreasing the temperature in the shop can help with the working environment but is not the fundamental purpose of a paint booth. Thus, option B correctly identifies the primary functions of a paint booth in promoting safety and high-quality outcomes in the painting process.